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APPLICATION FILED SEPT- 2, 1908.

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' CASH REGISTER.

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Patented Apr. v1915.

C. F. KETTERING & W. A. CHRYST.

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Patented Apr. 27, 1915.

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UMTED STATES PATENT ermee.

CHARLES F. KETTERING- AND WILLIAM A. CHRYT, OF DAYTON, OHIO, ASSIGNORS T 'THE NATIONAL CASH REGISTER COMPANY, OF DAYTON, OHIO, A CORPORATION OF OHIO, (INCORPORATED IN 1906.)

CASH-REGISTER.

Specification of Letters Patent. y Patented Apr. 27, 1915. i

Application led September 2, 1908. Serial No. 451,446.

To all whom t may concern departments or both, it is possible to compel 55 Be it known that we, CHARLES F. KETTER- the machine operator to identify any trans- ING and WILLIAM A.CHRYs'r, citizens of the action with both its department and its United States, residing at Dayton, in the operator beforethe mechanism may be recounty of Montgomery and State of Ohio, leased, without providing any interlocks to have invented certain new and useful Imcompela depression of keys in a certain serial 6o provement's in Cash-Registers, of which We order. declare the following to be a full, clear, and Another object is to provide a construction exact description. wherein the printer and the indicating mech- This invention relates to cash registers. anism are set directly from `one position to One of its principal objects is to produce another and Without any possibility of rea cash register of such construction that if bound. l desired its capacity may be increased to any Another object is to provide an improved amount by the mere addition of duplicate lock for the keys controlled by the main rekey banks and denominational elements conlease key whereby 'when the releasekey is trolled thereby. depressed no other key may thereafter be Another object is to provide a key bank actuated. v construction and differential mechanism Another object is to provide an improved controlled thereby all mounted together in constructionV for printing totals from the a single unit, one such unit being serviceable totalizer, and for locking the total key by y in any denominational element of the totalthe amount keys and the reverse.4

izer so that any desired number of the units Additional objects are to provide an immaybe inserted into the machine in any proved drawer releasing mechanism requirorder or position, the relative position in ing very little force and putting little strain which they are inserted into the machine on the mechanism, and an improved condetermining the denominational value of structionyfor a so-called throw-out counter. so each bank. This throw-out counter device is designed Another object is to provide a drawer to be adjustable so as to prevent actuation of operated cash register in which the leverage the totalizer in connection with any desired of the drawer isv so proportioned that the special keys. machine may be as easily operated as a' crank lVith these and incidental objects in View, 85 operated machine in which the crank is the invention consists in certain novel feacaused to make two revolutions at each. opertures of construction and combinations of ation. parts, the essential elements of which are set Another object is to regulate the closing forth in appended claims and a preferred of the cash drawer so that if a power which .form of embodiment of which is hereinafter is sufficient to start the drawer is uniformly described with reference to` the drawings applied during the closing movement the l Which accompany and form part of the speed will gradually be accelerated so as to specification. insure that at the end of the movement the Of said drawings: Figure l is a front drawer will travel with such force as to pass elevation of a cash register constituting the er its normal inner position which extra movepresent invention. The cabinet rand part of ment effects the release of the keys. the interior mechanism being omitted for Another object is to provide such conthe sake of clearness. Fig.'2 is a side elevastruction that nearly all of the operatingtion of one of the key sections showing one parts may be punched from sheet metal and bank of keys. FigtQA is a detail of the key need very little machine work. detent, .one of which is provided for each Another object is to provide an improved bank of keys. Fig. 2B is a detail of the key ink ribbon feeding device for the printer. locking device, one of which is also provided A flu-ther object is to provide a construcfor each bank. Fig. 3 is a side elevation of tion requiring a depression of certain idenone section of the differential mechanism tifying keys and a main release key before the mechanism may be finally released. By assigning special keys to the operatorsor and the indicator setting device which is controlled thereby. Fig. 3A is a side elevation of the indicator setting device. Fig. 4

l adding device.

is a rear elevation of the indicators and'their connections with the differential mechanism. This view also shows the connections between the differential mechanism and the type carriers. Fig. 5 is a side elevation of the indicators and the operating mechanism f or the same. Fig. 6 is a sectional view of the totalizer on the line 6 6 of Fig.,` 7. Fig. 6A is a perspective view of one` of the transfer pawls of the totalizer. Fig. 7 is a front elevation of the totalizer or Fig. 8 -is a side elevation of the main driving mechanism including the main motor spring and one of the pivoted drawer operating arms. This.

view also shows a side elevation of the totalizer. The side frame is omitted.v Fig. 8A is a detail of a cam shown in Fig. 8, and the parts operated thereby. Fig. 8B is a detail of one of the totalizer pinion alining devices.

- Fig. 9 is a right end elevation of the machine Awith the cabinet in section. Fig. 9A is a detail of the drawer latch. Fig. 9B is a detail o f part of the operatingmechanism of the drawer latch. Fig. 10 is a side elevation of one of the drawer operated arms and the mechanism which is used for shifting the totalizer into and out of mesh lwith the differential segments a-t the required times for the purpose of adding amounts to the totalizer and for causing a so-called throwout "operationiof the totalizer. Fig. 10A is a detail of a device for preventing the totalizer from being moved into mesh with the actuating racks when the machine is operated to record a charged amount or other I' transactions of such nature where it is desired not to add the amount upon the totalizer. Fig. 10B is a detail of part of the totalizer shifting mechanism. Fig. 11 is a side elevation of the printing mechanism looking toward the left of Fig. 1. Figfll isa detail of the ink ribbon reversing mechanism as shown in Fig. 11 but separated therefrom more' clearly to, illustrate the same. Fig. 12 is a side elevation of the key detents of one of the special banks of` keys.

This view also shows the resetting key and its control'of the zero stop for said: bank.

In a prior pending application, Serial No. 427,441 filed by C. F. Kettering and W. A. Chryst on April 16, 1908, a machine is shown having in certain respects, the same general principle of operation, as that of the machine shown and described herein. It will,- therefore, be understood, that the present invention is an improvement on theearlier one` and that all claims to subjectV matter common to the two cases are intended to be placed in the earlier application.

The general principle of this machine is as follows: Thediiferent banks of keys control the extents of movement of their indiv vidual totalizer segments, which segments are forwardly -driven by means of springs to such positions as are determined by decash drawer. The totalizer is caused to be meshed with the segments when the same are in their lowered positions so that upon the return of the segments the extent of upward movement of the segments will be imparted to the totalizer so that the desired amount'will be added to ther totalizer.

The segment gears which rotate the indi cators are controlled by the corresponding totalizer segments by means of a pair of links which are pivoted together at their ends and have their opposite ends respectively pivoted to the indicator ,operating segments and totalizer segments. Indicator alining devices are provided which serve to lock the indicators against rotation while the totalizer segments are being actuated and alining devices are provided which lock the totalizer segments when the same are at rest in their lower positions. When the totalizer segments are locked, the indicator alining devices are caused to release the in-4 dicator segments. One of the before mentioned links or rather beams which is pivoted to the totalizer segment carries'a roll which is moved to a certain definite position in a direction depending on its previous setting and the extent of forward movement of the totalizer segment. The said beamV at this time-merely rockws upon its pivotal connection with the other beam, as during the forward movement Oof the segment the' indicators are locked against movement. But when the totalizerv segments reach their forward positions the indicators are released and the totalizer segments are locked in such positions. At. this timea V-shaped `cam4 is caused to engage the roller on the beam which is pivoted to the totalizer segment and return the roller toits initial position, thereby through the link connection mentioned adjusting the indicator operating segment and moving the indicator from the position in which itwas left at the end of the preceding operationdirectly to the new position. The indicator alining device is then thrown into engagement t`o lock the in-v dicator, after which the V shaped cam is moved out of engagement with vthe roller on the indicator beam. The beam is lthen `oppositely rocked' and so causes the actuation of the indicator segment in accordance tothe actuation of the totalizer segment.

-By these means the totalizer segments are directly from one position to another without being first returned to zero positions.

Locking devices are provided which will prevent the release of the cash drawer unless one of the initial keys and also one of the special keys which indicate the nature of the transaction are depressed. All of the keys in these two banks control the printer so that the'printer will print the identifying initial of the operator and also the nature of the transaction, as, Received on.

Account, Charged, &c. if

The totalizer may be reset by the depression of a resetting key and the drawer release .key provided none of the amount keys or transaction keys are depressed.

The locking devices between the different banks of keys serve to make the drawer release key'inoperative unless the same is depressed in combination with either one of the initial keys and one ofthe special keys or else with the resetting key. If any proper combination of keys is depressed, the machine may be then completely operated by permitting the cash drawer to be "fully opened and closed before different keys can be depressed. This is accomplished by the special forms of key detents and a full stroke device operating in conjunction with the drawer operating arms, (all of which will be described in detail). printer is constructed, so that the same will operate to print a complete record of each operation of the machine, printing the operators identifying initial also one or the other of the special characters and the amount involved, or the operators identifying initial and total amount which has been added to the totalizer, when the totalizer is reset. i

The general arrangement of the machine may be seen from Fig. 1. The four banks oiikeys 20 at the right of the machine are the amount keys. The next bank to the left, 21, is the special or transaction keys. AThe bank 22 at the eXtreme left is the operators identifying keys. The drawer release key is located at 23. This key is shown at 24 in Fig'. 9. The resetting key is indicated at 25, Figl. This view also shows the location l of the printer 26 and of a customer counter 27 which counts the number of times the machine is operated. The two center indicators 28 and 29 which are controlled by the initial and :special keys are lettered so as to read both from the front and rear of the machine. The amount indicators 30 are in two sets, onev of which reads from thel front of the machine, and the other reads from the rear of the machine. The initial and special indicators are secured to larger pinions than are the amount indicators so that like movements of their respective operating segments will cause less peripheral movement of the initial and special indicators, as

said indicators carry two sets of indications, while the amount indicators only carry one. `Each bank of keys and the totalizer segment which is controlled thereby are mounted upon castings 31 which may be easily re'- 70 moved from the machine or different ones inserted into the machine merely by the removal of the tie bars 32. (See Fig. 2.) Each of the castings 31 is formed with a rearwardly and downwardly extending arm to the rear end of which is pivotally mountl ed at 310 a totalizer actuating segment 34.

, The keys are slidably mounted on the castings 31 in an arc concentric to the pivotalpoint of the segment 34. so

The totalizer 33, Fig. 6, is located directly above the totalizer actuating segments 34, Figs. 2 and 6.

Keyboard-The banks of amount keys (Fig. 2) besides having the regular number 85 of nine amount keys are each provided with a zero stop 35 which stop is for the purpose of preventing the totalizer segment from passing the zero position, during an operation of the machine, if no amount key has been depressed in therespective bank. lVhen an amount key is depressed it engages one of the pins 36 which are riveted to a key detent 37 (Figs. 2 and 2A) and causes the detent to be rocked downwardly from the piv- 9e ots 38 and 39 on which it is mounted by arms 52 and 53 so that the pin'40 which is carried byl the detent 37 will 'engage an extension 41 of the zero stop 35 and rock the same out of the pathof the extension 5l 100 of the totalizer segment. The zero'stop' is pivoted to the casting 3l at 42 and is spring drawn into the path of the totalizer segment bythe spring 43.A When one of the keys is fully depressed the detent 37 springs slightly 105 upward under the action of the spring 44 (Fig. 2A) so that the pin 36 will enter the notch 45 in the key and hold the same depressed against the action of thev key spring 46. The arms 52are provided with exten- 110 sions 47 which when the detent is lowered through the depression of a key, pass before a rod 48 mounted between a pairl of arms 49 rigid with the shaft 50 upon which the resetting key 25 is also mounted and will 115 therefore prevent the depression of the resetting key when any of the amount keys are in their depressed position.

It is necessary to prevent depression of thel resetting key when one of the amount 12.0 keys is depressed because if it were possible to depress both at the same time the amount indicated by the amount key would not be added to the totalizer, nor would the totalizer always be properly reset. In a resetting operation the totalizer is backwardly rotated to its Zero position by the totalizer actuating segments 34 during their forward stroke and the total-izer is held in its out of gear position during the return of the segments. It 

